Three-dimensional holographic laser reconstruction and processing with optimized computer-generated hologram

Honghao Zhang; Satoshi Hasegawa; Haruyoshi Toyoda; Yoshio Hayasaki

doi:10.1117/12.2600491

9 October 2021 Three-dimensional holographic laser reconstruction and processing with optimized computer-generated hologram

Honghao Zhang, Satoshi Hasegawa, Haruyoshi Toyoda, Yoshio Hayasaki

Author Affiliations +

Proceedings Volume 11898, Holography, Diffractive Optics, and Applications XI; 118980I (2021) https://doi.org/10.1117/12.2600491
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

A method that realizes the three-dimensional holographic laser reconstruction and processing by using an optimized computer-generated hologram (CGH) was demonstrated. A pre-designed CGH that contains three-dimensional (3D) information displayed on a liquid-crystal-on-silicon spatial light modulator (LCOS-SLM) can obtain the desired 3D diffraction pattern in the optical system, called 3D holographic laser reconstruction, and when it is reduced by an objective lens and incident on a sample, it can realize the 3D holographic laser processing. Using an optimization method, called in-system optimization, to compensate for the imperfections that exist in the actual laser system, and obtain the high-quality CGH. Consequently, a high uniformity 3D holographic laser reconstruction was achieved, and the consistent scale of the corresponding processing holes proved the feasibility and significance of the CGH optimization.

Conference Presentation

Citation Download Citation

Honghao Zhang, Satoshi Hasegawa, Haruyoshi Toyoda, and Yoshio Hayasaki "Three-dimensional holographic laser reconstruction and processing with optimized computer-generated hologram", Proc. SPIE 11898, Holography, Diffractive Optics, and Applications XI, 118980I (9 October 2021); https://doi.org/10.1117/12.2600491

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